[cortex-m] Remove unused process stack size

Author: salkinium

src/modm/platform/core/cortex/linker.macros

@@ -2,7 +2,7 @@
 %% macro copyright()
 /*
  * Copyright (c) 2011-2012, 2019, Fabian Greif
- * Copyright (c) 2012, 2015-2021, Niklas Hauser
+ * Copyright (c) 2012, 2015-2022, Niklas Hauser
  * Copyright (c) 2013, Sascha Schade
  * Copyright (c) 2013, 2015, Kevin Läufer
  *
@@ -40,10 +40,7 @@ __{{memory.name}}_end = ORIGIN({{memory.name|upper}}) + LENGTH({{memory.name|upp
 	%% endfor
 	%#
 
-/* The handler stack is used for main program as well as interrupts */
-MAIN_STACK_SIZE    = {{ options[":platform:cortex-m:main_stack_size"] }};
-PROCESS_STACK_SIZE = {{ process_stack_size }};
-TOTAL_STACK_SIZE   = MAIN_STACK_SIZE + PROCESS_STACK_SIZE;
+MAIN_STACK_SIZE = {{ options[":platform:cortex-m:main_stack_size"] }};
 %% endmacro
 
 
@@ -85,10 +82,6 @@ TOTAL_STACK_SIZE   = MAIN_STACK_SIZE + PROCESS_STACK_SIZE;
 		. = ALIGN(8);
 		__main_stack_top = .;
 
-		. += PROCESS_STACK_SIZE;
-		. = ALIGN(8);
-		__process_stack_top = .;
-
 		__stack_end = .;
 	} >{{memory}}
 %% endmacro

src/modm/platform/core/cortex/module.lb

@@ -123,7 +123,6 @@ def common_linkerscript(env):
     Computes linkerscript properties
     (\\* *post-build only*):
 
-      - `process_stack_size`: largest requested process stack size by any module
       - `vector_table_location`: ram or rom
 
     Stripped and newline-joined collector values of:
@@ -146,8 +145,6 @@ def common_linkerscript(env):
     :returns: dictionary of linkerscript properties
     """
     properties = {
-        "process_stack_size":
-            max(env.collector_values(":platform:cortex-m:linkerscript.process_stack_size", 0)),
         "vector_table_location":
             common_vector_table_location(env),
 
@@ -254,11 +251,6 @@ def prepare(module, options):
         StringCollector(
             name="linkerscript.table_extern.heap",
             description="Additions to the linkerscript's '.table.heap' section"))
-    module.add_collector(
-        NumericCollector(
-            name="linkerscript.process_stack_size",
-            description="Maximum required size of the process stack",
-            minimum=0))
 
     module.add_query(
         EnvironmentQuery(name="vector_table", factory=common_vector_table))

src/modm/platform/core/cortex/ram.ld.in

@@ -8,7 +8,7 @@
 
 %% if vector_table_location == "ram"
 /* Computes stack offset so that vector table is aligned */
-__stack_offset = ALIGN(TOTAL_STACK_SIZE, (1 << LOG2CEIL({{ highest_irq + 16 }})) * 8) - TOTAL_STACK_SIZE;
+__stack_offset = ALIGN(MAIN_STACK_SIZE, (1 << LOG2CEIL({{ highest_irq + 16 }})) * 8) - MAIN_STACK_SIZE;
 %#
 %% endif
 

src/modm/platform/core/stm32/dccm.ld.in

@@ -8,7 +8,7 @@
 
 %% if vector_table_location == "ram"
 /* Computes stack offset so that vector table is aligned */
-__stack_offset = ALIGN(TOTAL_STACK_SIZE, (1 << LOG2CEIL({{ highest_irq + 16 }})) * 8) - TOTAL_STACK_SIZE;
+__stack_offset = ALIGN(MAIN_STACK_SIZE, (1 << LOG2CEIL({{ highest_irq + 16 }})) * 8) - MAIN_STACK_SIZE;
 %#
 %% endif